package com.zbcx.generate.mbtiles;

import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

/**
 * 将文件，或者路径转成字符串或者二进制<br/>
 * 
 * @author zbcx
 * 
 */
public class ImageUtil {
	
	public static BASE64Encoder encoder = new BASE64Encoder();
	
	public static BASE64Decoder decoder = new BASE64Decoder();

	public static void main(String[] args) {
		System.out.println(getImageBinary());
		base64StringToImage(getImageBinary());
	}

	/**
	 * 将图片转换成二进制
	 * 
	 * @return
	 */
	public static byte[] getImageByte(File f) {
		BufferedImage bi;
		try {
			bi = ImageIO.read(f);
			ByteArrayOutputStream baos = new ByteArrayOutputStream();
			ImageIO.write(bi, "jpeg", baos); // 经测试转换的图片是格式这里就什么格式，否则会失真

			return baos.toByteArray();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return null;
	}
	
	public static byte[] getImageByteTest() {
		File f = new File("f:/事情/盖章.jpg");
		BufferedImage bi;
		try {
			bi = ImageIO.read(f);
			ByteArrayOutputStream baos = new ByteArrayOutputStream();
			ImageIO.write(bi, "jpeg", baos); // 经测试转换的图片是格式这里就什么格式，否则会失真

			return baos.toByteArray();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return null;
	}

	/**
	 * 将图片转换成二进制
	 * 
	 * @return
	 */
	public static String getImageBinary() {
		File f = new File("f:/事情/盖章.jpg");
		BufferedImage bi;
		try {
			bi = ImageIO.read(f);
			ByteArrayOutputStream baos = new ByteArrayOutputStream();
			ImageIO.write(bi, "jpg", baos); // 经测试转换的图片是格式这里就什么格式，否则会失真
			byte[] bytes = baos.toByteArray();

			return encoder.encodeBuffer(bytes).trim();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return null;
	}

	/**
	 * 将二进制转换为图片
	 * 
	 * @param base64String
	 */
	public static void base64StringToImage(String base64String) {
		try {
			byte[] bytes1 = decoder.decodeBuffer(base64String);

			ByteArrayInputStream bais = new ByteArrayInputStream(bytes1);
			BufferedImage bi1 = ImageIO.read(bais);
			File w2 = new File("f://QQ.jpg");// 可以是jpg,png,gif格式
			ImageIO.write(bi1, "jpg", w2);// 不管输出什么格式图片，此处不需改动
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}
